129061344 has 24 divisors (see below), whose sum is σ = 338786280. Its totient is φ = 43020416.

The previous prime is 129061343. The next prime is 129061351. The reversal of 129061344 is 443160921.

It is a tau number, because it is divible by the number of its divisors (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (129061343) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 672099 + ... + 672290.

It is an arithmetic number, because the mean of its divisors is an integer number (14116095).

Almost surely, 2^129061344 is an apocalyptic number.

It is an amenable number.

129061344 is an abundant number, since it is smaller than the sum of its proper divisors (209724936).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

129061344 is a wasteful number, since it uses less digits than its factorization.

129061344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1344402 (or 1344394 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 30.

The square root of 129061344 is about 11360.5168896490. The cubic root of 129061344 is about 505.3575143774.

The spelling of 129061344 in words is "one hundred twenty-nine million, sixty-one thousand, three hundred forty-four".